<template>
    <div>
        <!-- 面包屑导航区 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/Breadcrumb' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item >用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card >
            <el-row :gutter="20">
                <el-col :span="7">
                    <el-input placeholder="请输入内容"
                    v-model="queryInfo.query" clearable @clear="getUserList()" >
                        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表区 -->
            <el-table :data="userList" border stripe>
                <el-table-column type="index" label="序号"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="175px">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-button size="mini" type="primary" icon="el-icon-edit"  @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除按钮 -->
                        <el-button size="mini" type="danger" icon="el-icon-delete"  @click="removeUserById(scope.row.id)"></el-button>    
                        <!-- 分配角色按钮 -->
                        <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable=false>
                            <el-button size="mini" type="warning" icon="el-icon-setting"  @click="showSetRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
                @size-change="handleSizeChange"
                @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum"
                :page-sizes="[5, 1, 2, 10]"
                :page-size="queryInfo.page-size"
                layout="total, sizes, prev, pager, next, jumper"
                :total="total" background>
            </el-pagination>

            <!-- 添加用户的对话框 -->
            <el-dialog
                title="添加用户"
                :visible.sync="addDialogVisible"
                width="50%"
                @close="addDialogClosed()">
                <!-- 内容主体区域 -->
                <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="addForm.username"></el-input>
                    </el-form-item>
                    <el-form-item label="密码"  prop="password">
                        <el-input v-model="addForm.password" type="password"></el-input>
                    </el-form-item>
                    <el-form-item label="邮箱"  prop="email">
                        <el-input v-model="addForm.email" type="email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机号" prop="mobile">
                        <el-input v-model="addForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <!-- 底部区 -->
                <span slot="footer" class="dialog-footer">
                    <el-button @click="addDialogVisible=false">取 消</el-button>
                    <el-button type="primary" @click="addUser()">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 修改用户的对话框 -->
            <el-dialog
                title="修改用户"
                :visible.sync="editDialogVisible"
                width="30%"
                @close="editDialogClosed()"
                >
                <el-form ref="editFormRef" :model="editForm" :rules="addFormRules" label-width="70px" >
                    <el-form-item label="用户名" prop="username">
                        <el-input v-model="editForm.username" disabled></el-input>
                    </el-form-item>

                    <el-form-item label="邮箱"  prop="email">
                        <el-input v-model="editForm.email" type="email"></el-input>
                    </el-form-item>
                    <el-form-item label="手机号" prop="mobile">
                        <el-input v-model="editForm.mobile"></el-input>
                    </el-form-item>
                </el-form>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="editDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="editUserInfo()">确 定</el-button>
                </span>
            </el-dialog>
            <!-- 分配角色的对话框 -->
            <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed">
                <div>
                    <p>当前的用户：{{ roleInfo.username }}</p>
                    <p>当前的角色：{{ roleInfo.role_name }}</p>
                    <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择角色">
                        <el-option v-for="item in rolesList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                    </p>
                </div>
                <span slot="footer" class="dialog-footer">
                    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                    <el-button type="primary" @click="saveRoleInfo()">确 定</el-button>
                </span>
            </el-dialog>
        </el-card>
    </div>
</template>
<script>
export default {
    data() {
        //验证邮箱的规则
        var checkEmail = (rule,value,cb) => {
            const regEmail = /^\w+@[\da-z\.-]+\.([a-z]{2,6}|[\u2E80-\u9FFF]{2,3})$/
            if (regEmail.test(value)) {
                return cb()
            } else {
                cb(new Error('请输入合法的邮箱'))
            }
        }
        //验证手机号的规则
        var checkMobile = (rule,value,cb) => {
            const regMobile = /^1[3456789]\d{9}$/
            if (regMobile.test(value)) {
                return cb()
            } else {
                cb(new Error('请输入合法的手机号'))
            }
        }
        return {
            //获取用户列表的参数对象
            queryInfo:{
                query:'',
                //当前页数
                pagenum:1,
                //当前每页显示多少条数据
                pagesize:5
            },
            userList:[],
            total:0,
            //控制添加用户对话框的显示和隐藏
            addDialogVisible:false,
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:'',
            },
            //添加用户表单的验证规则对象
            addFormRules:{
                        //验证用户名是否合法
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    {
                        min: 3,
                        max: 10,
                        message: '长度在 3 到 10 个字符',
                        trigger: 'blur',
                    },
                ],
                password:[
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    {
                        min: 6,
                        max: 15,
                        message: '长度在 6 到 15 个字符',
                        trigger: 'blur',
                    },
                ],
                email:[
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail, trigger: 'blur' }
                ],
                mobile:[
                     { required: true, message: '请输入手机号', trigger: 'blur' },
                     { validator: checkMobile, trigger: 'blur' }
                ]
            },
            //控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{},
            //控制分配用户角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            selectedRoleId: '',
            roleInfo:{},
            rolesList:{},
        }
    },
    created() {
        this.getUserList()
    },
    methods: {

        async getUserList(){
            const {data:res} = await this.$http.get('users',{params:this.queryInfo})
            if(res.meta.status !== 200 ){
                return this.$message.error('获取用户列表失败！')
            }
            this.userList=res.data.users
            this.total=res.data.total
            console.log(res)
        },
        //监听 pagesize 改变的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        //监听页码值 改变的事件
        handleCurrentChange(newPage){
            this.queryInfo.pagenum = newPage
            this.getUserList()
        },
        //监听 switch开关状态的改变
        async userStateChanged(userinfo){
            console.log(userinfo)
            const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
            if(res.meta.status !== 200 ){
                userinfo.mg_state = !userinfo.mg_state
                return this.$message.error("用户更新状态失败！")
            }
            this.$message.success("更新用户状态成功！")
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击确定按钮，添加新用户
        addUser(){
            this.$refs.addFormRef.validate(async valid => {
                if(!valid) return
                //可以发起添加用户的网络请求
                const {data:res} = await this.$http.post('users',this.addForm)
                if(res.meta.status !== 201){
                    this.$message.error('添加用户失败！')
                }else{
                    this.$message.success('添加用户成功！')
                    //隐藏添加用户的对话框
                    this.addDialogVisible = false
                    //重新获取用户列表数据
                    this.getUserList()
                }
            })
        },
        //展示编辑用户的对话框
        async showEditDialog(id){
            console.log(id)
            const { data : res } = await this.$http.get('users/'+id)
            this.editForm = res.data
            this.editDialogVisible =true
            
        } ,
        //监听修改用户对话框的关闭
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid => {
                if(!valid) return
                //可以发起修改用户的网络请求
                const {data:res} = await this.$http.put('users/'+
                    this.editForm.id,{
                        email:this.editForm.email,
                        mobile:this.editForm.mobile
                })
                if(res.meta.status !== 201){
                    this.$message.error('更新用户失败！')
                }
               
                //隐藏更新用户的对话框
                this.editDialogVisible = false
                //重新获取用户列表数据
                this.getUserList()
                
                this.$message.success('更新用户成功！')
                
            })
        },
        //根据id删除对应的用户信息
        async removeUserById(id){
            //弹窗
            const res = await this.$confirm('是否删除该用户, 是否继续?', '提示', {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning'
            }).catch(err =>  err)
            //如果用户确认删除，则返回值为字符串confirm
            //如果用户确认删除，则返回值为字符串cancel
            if(res !== 'confirm'){
                return this.$message.info('已取消删除')
            }
            const {data:res2} = await this.$http.delete('users/'+id)
            // if(res.meta.status !== 200){
            //     this.$message.error('删除用户失败！')
            // }
            
            if( this.userList.length === 1 ){
                this.queryInfo.pagenum = this.queryInfo.pagenum === 1 ? 1 : this.queryInfo.pagenum-1
            }
            this.$message.success('删除用户成功！')
            this.getUserList()
            
            
        },
        //展示分配角色用户的对话框
        async showSetRole(roleInfo) {
            this.roleInfo = roleInfo
        
            const { data: res } = await this.$http.get('/roles')
        
            if (res.meta.status != 200) return this.$message.error(res.meta.msg)
            this.rolesList = res.data
            this.setRoleDialogVisible = true
        },
        async saveRoleInfo() {
            if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色')
            const rid = this.selectedRoleId
            const { data: res } = await this.$http.put(`/users/${this.roleInfo.id}/role`, {rid}) 
            if (res.meta.status == 200) {
                this.getUserList()
                this.setRoleDialogVisible = false
                return this.$message.success(res.meta.msg + "!!!");
            } else {
                this.setRoleDialogVisible = false
                return this.$message.error(res.meta.msg + "!!!")
            };
        },
        setRoleDialogClosed() {
            this.selectedRoleId = ''
            // this.roleInfo.id = ''
        }
        
    },
}
</script>
<style lang="less" scope>
    
</style>